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Sticky LMI Players' Rating System
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neerajmehrotra
Subject: Re: LMI Players' Rating System @ 2010-11-18 8:46 PM (#2548 - in reply to #1357) (#2548) Top




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LMI Sudoku Ratings have now been updated after the Renban Group Sudokus.... A direct link to the ratings is also included on the main forum page through an icon at the top (next to Authors).

A total of 237 players (an increase of 31 players) from 38 countries (an increase of 6 countries) are represented in the current ratings.

Thomas Snyder, two time world champion has comfortably retained his number one spot (despite missing the Renban Groups)and Nikola has jumped to the second spot pushing Jason V Zuffranieri down to the third spot by just a single point margin.....really a tough fight. Chen Cen needs to put some more effort and wait till the next game to come back in the top three..........

Coming to the Indian participants.........No change in the top two Indian positions but Rohan slipped to overall 10th slot from his previous 9th while Rishi improved his rating and reached to the 7th from 8th position. Gaurav Korde has been dropped from the ratings as he consecutively missed the third test....and thus Jaipal joins Rishi and Rohan in the top three Indian positions. Both Rishi and Rohan need to work hard for coming in the elite top 5....

Do share your comments on the ratings here.
akash.doulani
Subject: Re: LMI Players' Rating System @ 2010-11-18 9:16 PM (#2549 - in reply to #1357) (#2549) Top


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just wanted to know how are the rating points calculated?
neerajmehrotra
Subject: Re: LMI Players' Rating System @ 2010-11-18 9:39 PM (#2550 - in reply to #2549) (#2550) Top




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akash.doulani - 2010-11-18 9:16 PM

just wanted to know how are the rating points calculated?



The rating is calculated based on a scientific algorithm (and very difficult to explain here), which uses multiple factors (e.g. scores, consistency, # of tests). The maximum possible rating is 1000 and the minimum is 0.


Best way to come up in the ratings is to keep on playing regularly (dont miss the tests) and try and do well........
Gotroch
Subject: RE: LMI Players' Rating System @ 2010-11-19 12:43 AM (#2551 - in reply to #1357) (#2551) Top




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It would be nice if you add points change (for ex. +16) in comparison with score from previous leaderboard.
And similar statistic for player position change :)

Edited by Gotroch 2010-11-19 12:46 AM
Fred76
Subject: RE: LMI Players' Rating System @ 2010-11-19 12:48 AM (#2552 - in reply to #1357) (#2552) Top



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Just a proposition for the rating:

It would be interesting to indicate (perhaps with arrows next to the ranking) if the rank of a player is better, worse or equal compared to last ranking (ranking before last test).

Fred
Fred76
Subject: RE: LMI Players' Rating System @ 2010-11-19 12:50 AM (#2553 - in reply to #2551) (#2553) Top



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Gotroch - 2010-11-19 12:43 AM

It would be nice if you add points change (for ex. +16) in comparison with score from previous leaderboard.
And similar statistic for player position change :)


This time, you were faster than me
Para
Subject: Re: LMI Players' Rating System @ 2010-11-19 1:05 AM (#2554 - in reply to #2553) (#2554) Top




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Wasn't exactly aware there was a rating system. Guess doing a 100 min. test in 50 minutes isn't exactly good for that. At least I should be able to go up with the next test?
rakesh_rai
Subject: Re: LMI Players' Rating System @ 2010-11-19 9:12 AM (#2557 - in reply to #2550) (#2557) Top



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neerajmehrotra - 2010-11-18 9:39 PM
akash.doulani - 2010-11-18 9:16 PMjust wanted to know how are the rating points calculated?
The rating is calculated based on a scientific algorithm (and very difficult to explain here), which uses multiple factors (e.g. scores, consistency, # of tests). The maximum possible rating is 1000 and the minimum is 0.Best way to come up in the ratings is to keep on playing regularly (dont miss the tests) and try and do well........
Akash: As Neeraj metioned, there is a currently an algorithm in place for ratings. And, we'll re-look at it periodically, to improve it further. The next review should happen around early 2011. So, if you do have any points/concerns, please share them here, so that we can discuss them while reviewing, and include any valid ones.

And, Congratulations for improving your rating by 160 points !!!
rakesh_rai
Subject: RE: LMI Players' Rating System @ 2010-11-19 9:19 AM (#2558 - in reply to #2551) (#2558) Top



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Gotroch - 2010-11-19 12:43 AM
It would be nice if you add points change (for ex. +16) in comparison with score from previous leaderboard.And similar statistic for player position change :)
Fred76 - 2010-11-19 12:48 AM
Just a proposition for the rating:
It would be interesting to indicate (perhaps with arrows next to the ranking) if the rank of a player is better, worse or equal compared to last ranking (ranking before last test).
Both are valid points. This is very much a part of the plans, and you'll see this happen sooner than later.
rakesh_rai
Subject: Re: LMI Players' Rating System @ 2010-11-19 9:30 AM (#2559 - in reply to #2554) (#2559) Top



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Para - 2010-11-19 1:05 AM
Wasn't exactly aware there was a rating system. Guess doing a 100 min. test in 50 minutes isn't exactly good for that.
Fortunately, the next puzzle test (FLIP) is for 50 mins duration only :)

At least I should be able to go up with the next test?
I think your LMI sudoku rating should defintely improve with a reasonable performance in the next LMI sudoku test.

And, the LMI puzzle ratings will also be coming up soon.
debmohanty
Subject: Re: LMI Players' Rating System @ 2010-11-19 9:35 AM (#2560 - in reply to #2554) (#2560) Top



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Para - 2010-11-19 1:05 AM

Wasn't exactly aware there was a rating system. Guess doing a 100 min. test in 50 minutes isn't exactly good for that. At least I should be able to go up with the next test?

50 minutes for a test is an exception.
Most Sudoku tests will be between 100 to 120 minutes (ideally 120 minutes)
Most puzzles tests will be between 80 to 120 minutes (ideally 100+ minutes)
akash.doulani
Subject: Re: LMI Players' Rating System @ 2010-11-19 4:56 PM (#2563 - in reply to #2557) (#2563) Top


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it was a pleasant surprise to see my ratings increase by 160 points. wasnt actually expecting it to improve as much as it did. i guess 360 points is not bad for someone with just two monthly tests under his belt.
vopani
Subject: RE: LMI Players' Rating System @ 2010-11-19 5:58 PM (#2569 - in reply to #2552) (#2569) Top


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Fred76 - 2010-11-19 12:48 AM

Just a proposition for the rating:

It would be interesting to indicate (perhaps with arrows next to the ranking) if the rank of a player is better, worse or equal compared to last ranking (ranking before last test).

Fred

I like the idea of an arrow. Maybe a green arrow pointing up and a red arrow pointing down. Lets see what we can do.
Thanks for the idea.

And Thanks to Gotroch too, for initiating the concept :-)
neerajmehrotra
Subject: Re: LMI Players' Rating System @ 2010-11-19 8:42 PM (#2570 - in reply to #2563) (#2570) Top




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akash.doulani - 2010-11-19 4:56 PM

it was a pleasant surprise to see my ratings increase by 160 points. wasnt actually expecting it to improve as much as it did. i guess 360 points is not bad for someone with just two monthly tests under his belt.


Yeah Akash, This shows how important is to play consistently in all the tests...............
Congrats for such a gud performance.
rakesh_rai
Subject: LMI Puzzle Ratings @ 2010-11-26 11:57 AM (#2678 - in reply to #2300) (#2678) Top



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DreamRose311 - 2010-10-21 1:41 AMNow that there have been 5 puzzle tests, can we expect a similar LMI Puzzle Ratings soon?
Finally, the inaugural LMI Puzzle Ratings are up. You can also reach the ratings from the home page, by clicking on Puzzle under Ratings.

A total of 359 players from 40 countries are included in the inaugural LMI Puzzle rating list. Apart from India, the top five countries in terms of number of participating players are USA, Germany, Japan, Poland and UK. The LMI puzzle ratings will be updated next in mid-December 2010.

Its a neck and neck race for the No 1 spot between Thomas Snyder (motris) and Hideaki Jo (deu). Ulrich Voigt (uvo) is currently ranked third. The top 10 is dominated by the Germans and the Japanese, occupying 8 of the 10 places.

Amit Sowani, Rohan Rao and Rajesh Kumar are the top 3 Indians in the list, and the only ones in the Top 50.
rakesh_rai
Subject: Re: LMI Players' Rating System @ 2010-11-26 2:37 PM (#2679 - in reply to #2678) (#2679) Top



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rakesh_rai - 2010-11-19 9:19 AM
Gotroch - 2010-11-19 12:43 AM
It would be nice if you add points change (for ex. +16) in comparison with score from previous leaderboard.And similar statistic for player position change :)
Fred76 - 2010-11-19 12:48 AM
Just a proposition for the rating:
It would be interesting to indicate (perhaps with arrows next to the ranking) if the rank of a player is better, worse or equal compared to last ranking (ranking before last test).
Both are valid points. This is very much a part of the plans, and you'll see this happen sooner than later.
You can check out the LMI Sudoku Ratings page now. Arrows are now included to indicate the change in rank (from previous rating list). The exact changes in the ranks and ratings are explicitly indicated as well.
debmohanty
Subject: Re: LMI Players' Rating System @ 2010-11-26 2:47 PM (#2680 - in reply to #2679) (#2680) Top



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rakesh_rai - 2010-11-26 2:37 PM
You can check out the LMI Sudoku Ratings page now. Arrows are now included to indicate the change in rank (from previous rating list). The exact changes in the ranks and ratings are explicitly indicated as well.

Looks good. May be an explanation of what the arrows indicate?
It looks like a jump of 10+ ranks is indicated by Up arrow.
rakesh_rai
Subject: Re: LMI Players' Rating System @ 2010-11-26 3:10 PM (#2681 - in reply to #2680) (#2681) Top



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debmohanty - 2010-11-26 2:47 PM
May be an explanation of what the arrows indicate? It looks like a jump of 10+ ranks is indicated by Up arrow.
You are right. The arrows are largely self explanatory. As of now, we have used five arrows in three colours to indicate the changes in ranks, as below:

- The green arrow indicates that the player is on the up, and has made major gains (10+) in the ranks as compared to last ranking list.
- This arrow indicates that the player has made minor gains in ranks (1-9).
- The right blue arrows indicate that there is no change in the rank.
- This arrow indiates that the player has dropped 1-9 ranks.
- The red arrow indicates that the player has dropped 10+ ranks.
Fred76
Subject: Re: LMI Players' Rating System @ 2010-11-26 3:18 PM (#2682 - in reply to #2679) (#2682) Top



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rakesh_rai - 2010-11-26 2:37 PM

You can check out the LMI Sudoku Ratings page now. Arrows are now included to indicate the change in rank (from previous rating list). The exact changes in the ranks and ratings are explicitly indicated as well.


It's great !
purifire
Subject: Re: LMI Players' Rating System @ 2010-11-26 3:33 PM (#2683 - in reply to #2681) (#2683) Top



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rakesh_rai - 2010-11-26 3:10 PM

debmohanty - 2010-11-26 2:47 PM
May be an explanation of what the arrows indicate? It looks like a jump of 10+ ranks is indicated by Up arrow.
You are right. The arrows are largely self explanatory. As of now, we have used five arrows in three colours to indicate the changes in ranks, as below:

- The green arrow indicates that the player is on the up, and has made major gains (10+) in the ranks as compared to last ranking list.
- This arrow indicates that the player has made minor gains in ranks (1-9).
- The right blue arrows indicate that there is no change in the rank.
- This arrow indiates that the player has dropped 1-9 ranks.
- The red arrow indicates that the player has dropped 10+ ranks.


This is cool Rakesh!
debmohanty
Subject: Re: LMI Players' Rating System @ 2010-11-26 4:03 PM (#2684 - in reply to #2681) (#2684) Top



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rakesh_rai - 2010-11-26 3:10 PM
You are right. The arrows are largely self explanatory. As of now, we have used five arrows in three colours to indicate the changes in ranks, as below:

- The green arrow indicates that the player is on the up, and has made major gains (10+) in the ranks as compared to last ranking list.
- This arrow indicates that the player has made minor gains in ranks (1-9).
- The right blue arrows indicate that there is no change in the rank.
- This arrow indiates that the player has dropped 1-9 ranks.
- The red arrow indicates that the player has dropped 10+ ranks.

Thanks for explaining.
So there is no 'major' jump (in either direction) in top20.
But I would think that cpickerel and willwc cases are significant jumps.
The point i'm trying to make is a jump of 5 ranks in top20 or jump of 10 ranks in top50 or a jump of 20 ranks in top100 should be considered as major.
purifire
Subject: Re: LMI Players' Rating System @ 2010-11-26 4:05 PM (#2685 - in reply to #2684) (#2685) Top



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debmohanty - 2010-11-26 4:03 PM

Thanks for explaining.
So there is no 'major' jump (in either direction) in top20.
But I would think that cpickerel and willwc cases are significant jumps.
The point i'm trying to make is a jump of 5 ranks in top20 or jump of 10 ranks in top50 or a jump of 20 ranks in top100 should be considered as major.


Jump or Drop you mean :)
rakesh_rai
Subject: Re: LMI Players' Rating System @ 2010-11-26 4:28 PM (#2686 - in reply to #2684) (#2686) Top



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debmohanty - 2010-11-26 4:03 PM

So there is no 'major' jump (in either direction) in top20.
Blue is my favourite colour, so I wanted more of blue .
Actually, with the current thumb-rule, it is less likely that we'll see a green or red arrow in Top 20.

But I would think that cpickerel and willwc cases are significant jumps.The point i'm trying to make is a jump of 5 ranks in top20 or jump of 10 ranks in top50 or a jump of 20 ranks in top100 should be considered as major.
I think you meant a drop for cpickerel. Thanks Rishi.
But you have got a very valid point here. Since you want to see a more colourful rating list, we can definitely think of a context based definition of 'major'. Lets have more views on this and we can refine this further.
debmohanty
Subject: Re: LMI Players' Rating System @ 2010-11-26 4:32 PM (#2687 - in reply to #2686) (#2687) Top



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purifire - 2010-11-26 4:05 PM
Jump or Drop you mean :)

rakesh_rai - 2010-11-26 4:28 PM
I think you meant a drop for cpickerel. Thanks Rishi.

Yes - I used jump for both the directions. drop is the correct word.
purifire
Subject: Re: LMI Players' Rating System @ 2010-11-26 4:34 PM (#2688 - in reply to #2687) (#2688) Top



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debmohanty - 2010-11-26 4:32 PM

purifire - 2010-11-26 4:05 PM
Jump or Drop you mean :)

rakesh_rai - 2010-11-26 4:28 PM
I think you meant a drop for cpickerel. Thanks Rishi.

Yes - I used jump for both the directions. drop is the correct word.


Change would be the best word since drop only signifies a downword trend :D
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